* sysdeps/i386/dl-machine.h (elf_machine_rela): Handle R_386_COPY.

	* sysdeps/arm/dl-machine.h (elf_machine_rela): Handle R_ARM_COPY.

2002-11-15  Roland McGrath  <roland@redhat.com>

	* math/Makefile (libm-calls): Change s_ldexp to m_ldexp.
	* Makerules ($(+sysdir_pfx)sysd-rules): Emit pattern rules for m_%.[Sc]
	from sysdeps/.../s_%.[Sc] with commands $(+make-include-of-dep).
	(+make-include-of-dep): New canned sequence.

	* stdlib/canonicalize.c (__realpath): Check for malloc failure.
	From Dmitry V. Levin <ldv@altlinux.org>.

diff --git a/ChangeLog b/ChangeLog
index e0d4e78..bf84dc0 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,18 @@
+2002-11-15  Jakub Jelinek  <jakub@redhat.com>
+
+       * sysdeps/i386/dl-machine.h (elf_machine_rela): Handle R_386_COPY.
+       * sysdeps/arm/dl-machine.h (elf_machine_rela): Handle R_ARM_COPY.
+
+2002-11-15  Roland McGrath  <roland@redhat.com>
+
+       * math/Makefile (libm-calls): Change s_ldexp to m_ldexp.
+       * Makerules ($(+sysdir_pfx)sysd-rules): Emit pattern rules for m_%.[Sc]
+       from sysdeps/.../s_%.[Sc] with commands $(+make-include-of-dep).
+       (+make-include-of-dep): New canned sequence.
+
+       * stdlib/canonicalize.c (__realpath): Check for malloc failure.
+       From Dmitry V. Levin <ldv@altlinux.org>.
+
 2002-11-14  Roland McGrath  <roland@redhat.com>
 
        * sysdeps/generic/errno.c (__libc_errno): Remove alias.

diff --git a/Makerules b/Makerules
index 89e8c0e..d8d7f97 100644 (file)
--- a/Makerules
+++ b/Makerules
@@ -283,6 +283,8 @@ $(+sysdir_pfx)sysd-rules: $(+sysdir_pfx)config.make $(..)Makerules \
                \$$(+make-deps)";                                             \
           echo "\$$(objpfx)rtld-%.d: $$dir/%.c \$$(before-compile); \
                \$$(+make-deps)";                                             \
+          echo "\$$(objpfx)m_%.S: $$dir/s_%.S; \$$(+make-include-of-dep)";   \
+          echo "\$$(objpfx)m_%.c: $$dir/s_%.c; \$$(+make-include-of-dep)";   \
         done;                                                                \
         echo 'sysd-rules-done = t') > $@T
        mv -f $@T $@
@@ -292,6 +294,12 @@ ifndef sysd-rules-done
 no_deps=t
 endif
 
+# This is used by the m_%.[Sc] pattern rules in sysd-rules.
+define +make-include-of-dep
+echo '#include <$<>' > $@T
+mv -f $@T $@
+endef
+
 # Generate version maps, but wait until sysdep-subdirs is known
 ifeq ($(sysd-sorted-done),t)
 ifeq ($(versioning),yes)

diff --git a/math/Makefile b/math/Makefile
index 045cdb2..b710c37 100644 (file)
--- a/math/Makefile
+++ b/math/Makefile
@@ -46,7 +46,7 @@ libm-calls = e_acos e_acosh e_asin e_atan2 e_atanh e_cosh e_exp e_fmod        \
             e_rem_pio2 e_remainder e_scalb e_sinh e_sqrt e_gamma_r     \
             k_cos k_rem_pio2 k_sin k_tan s_asinh s_atan s_cbrt         \
             s_ceil s_copysign s_cos s_erf s_expm1 s_fabs s_finite      \
-            s_floor s_frexp s_ilogb s_ldexp s_log1p s_logb             \
+            s_floor s_frexp s_ilogb m_ldexp s_log1p s_logb             \
             s_modf s_nextafter s_nexttoward s_rint s_scalbn s_scalbln  \
             s_significand s_sin s_tan s_tanh w_acos w_acosh w_asin     \
             w_atan2 w_atanh w_cosh w_drem w_exp w_exp2 w_exp10 w_fmod  \
@@ -74,6 +74,8 @@ distribute += $(long-m-yes:=.c)
 # These functions are in libc instead of libm because __printf_fp
 # calls them, so any program using printf will need them linked in,
 # and we don't want to have to link every program with -lm.
+# In libm-calls (above), list m_foo in place of s_foo for any
+# routine that should be compiled separately for its libc and libm versions.
 calls = s_isinf s_isnan s_finite s_copysign s_modf s_scalbn s_frexp s_ldexp \
        s_signbit
 routines = $(calls) $(calls:=f) $(long-c-$(long-double-fcts))

diff --git a/stdlib/canonicalize.c b/stdlib/canonicalize.c
index 3394048..5c55c5d 100644 (file)
--- a/stdlib/canonicalize.c
+++ b/stdlib/canonicalize.c
@@ -73,7 +73,14 @@ __realpath (const char *name, char *resolved)
     path_max = 1024;
 #endif
 
-  rpath = resolved ? __alloca (path_max) : malloc (path_max);
+  if (resolved == NULL)
+    {
+      rpath = malloc (path_max);
+      if (rpath == NULL)
+       return NULL;
+    }
+  else
+    rpath = resolved;
   rpath_limit = rpath + path_max;
 
   if (name[0] != '/')

diff --git a/sysdeps/arm/dl-machine.h b/sysdeps/arm/dl-machine.h
index e3e666a..074762e 100644 (file)
--- a/sysdeps/arm/dl-machine.h
+++ b/sysdeps/arm/dl-machine.h
@@ -554,12 +554,37 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
     return;
   else
     {
+# ifndef RESOLVE_CONFLICT_FIND_MAP
+      const Elf32_Sym *const refsym = sym;
+# endif
       Elf32_Addr value = RESOLVE (&sym, version, r_type);
       if (sym)
        value += sym->st_value;
 
       switch (r_type)
        {
+#  ifndef RESOLVE_CONFLICT_FIND_MAP
+         /* Not needed for dl-conflict.c.  */
+       case R_ARM_COPY:
+         if (sym == NULL)
+           /* This can happen in trace mode if an object could not be
+              found.  */
+           break;
+         if (sym->st_size > refsym->st_size
+             || (GL(dl_verbose) && sym->st_size < refsym->st_size))
+           {
+             const char *strtab;
+
+             strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]);
+             _dl_error_printf ("\
+%s: Symbol `%s' has different size in shared object, consider re-linking\n",
+                               rtld_progname ?: "<program name unknown>",
+                               strtab + refsym->st_name);
+           }
+         memcpy (reloc_addr, (void *) value, MIN (sym->st_size,
+                                                  refsym->st_size));
+         break;
+#  endif /* !RESOLVE_CONFLICT_FIND_MAP */
        case R_ARM_GLOB_DAT:
        case R_ARM_JUMP_SLOT:
        case R_ARM_ABS32:

diff --git a/sysdeps/i386/dl-machine.h b/sysdeps/i386/dl-machine.h
index 4aa0737..add6f8e 100644 (file)
--- a/sysdeps/i386/dl-machine.h
+++ b/sysdeps/i386/dl-machine.h
@@ -514,6 +514,9 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
     *reloc_addr = map->l_addr + reloc->r_addend;
   else if (r_type != R_386_NONE)
     {
+# ifndef RESOLVE_CONFLICT_FIND_MAP
+      const Elf32_Sym *const refsym = sym;
+# endif
 # ifdef USE_TLS
       struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
       Elf32_Addr value = sym == NULL ? 0 : sym_map->l_addr + sym->st_value;
@@ -568,6 +571,29 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
          CHECK_STATIC_TLS (map, sym_map);
          break;
 # endif        /* use TLS */
+# ifndef RESOLVE_CONFLICT_FIND_MAP
+         /* Not needed for dl-conflict.c.  */
+       case R_386_COPY:
+         if (sym == NULL)
+           /* This can happen in trace mode if an object could not be
+              found.  */
+           break;
+         if (__builtin_expect (sym->st_size > refsym->st_size, 0)
+             || (__builtin_expect (sym->st_size < refsym->st_size, 0)
+                 && GL(dl_verbose)))
+           {
+             const char *strtab;
+
+             strtab = (const char *) D_PTR (map, l_info[DT_STRTAB]);
+             _dl_error_printf ("\
+%s: Symbol `%s' has different size in shared object, consider re-linking\n",
+                               rtld_progname ?: "<program name unknown>",
+                               strtab + refsym->st_name);
+           }
+         memcpy (reloc_addr, (void *) value, MIN (sym->st_size,
+                                                  refsym->st_size));
+         break;
+# endif /* !RESOLVE_CONFLICT_FIND_MAP */
        default:
          /* We add these checks in the version to relocate ld.so only
             if we are still debugging.  */